When your car's Check Engine light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap.
If you experience any bleeding period after this 20 days, it will probably be the real period. This normally comes at about 4 to 6 weeks after the miscarriage.
Conventional wisdom has led doctors to recommend that women wait at least three months after a miscarriage before trying to get pregnant again with the belief that this delay will reduce the risk of another miscarriage.